Butcher&#39;s cleaver.



V No 839,043. PATENTED DEC. 18,1906.

J. H.. SHERRY. H BUTGHERS GLEAVER. 1.

APPLICATION FILED JULY 26, 1905.

2' SHEETS-SHEET 1 Guam/q.-

No. 839,043. PATENTED DEC. 18, 1906.

' J. H. SHERRY.

BUTGHERS GLEAVER.

APPLICATION P-ILED JULY 26, 1905.

2 SHEETS-*SHEET'EL i m X w M w i k T allwhom itlmay concern.-

. citizen of the United "of South Omaha, in

' UNITED STATE {PATENT OFFICE.

v .IoHN H.'S'HERRY, or SOUTH'OMAHA, NEBRASKA.

' BUTCHERS, CLEAVER.

j Specification of Letters Patent.

Patented Dec. 1a, 1906.

Application filed July 26,1806; Serial in. 271,384.

Be it known that I, JorrN H. SHERRY, a States, and a resident the countyof Douglas and State of Nebraska, have invented certain new and usefulImprovements in Butchers of which the following is a-specifiwith asuitable cutting-blade, of a fluid-pressure-driven reeiproeator hammerof type, such hammers being-commonly usedv which the casing is connectewith the cuttingblade, a controllin -valve, a flexible supplytube,andhandles y which the device, may .be carried and guided. r

- In the accompanying drawings, Figure 1 v is aside elevation of amechanism embodying my invention. Fi 2 is an end elevation of thecutter-blade t ereof, showing the connecting-shank thereon; and Fig. 3is aseetion'al view of themechanism, showin' the application thereto ofthe pneumaticammer construction described in the patent to Boyer, No.549,102, November 5, 1895,.

In carrying out my invention I prefer to employ a pneumatic hammer of.the above by metal-workers for riveting, calking, and the like, andcomprising a cylindrical casing inclosing a reoi rocatory plun er, thecasing bein provide with a suitab'e handle, the ban le having connectionwith a flexible sup Iy-tube'and inclosing a suitable controllingevalve,and the end of the hammercasinghaving an opening therein in which isinserted a tool to receive the impact of the reciprocatoryfplunger. Thedetailed construction of the hammer employed is immaterial to myinvention, and any of the well, known forms of pneumatic hammer may beemployed. J

In the preferred embodiment of my invention (shown in Fig.1) I provide ahammer of the class described, to which is connected s at the upper endof the casing 1 the air supply pipe 2, which extends therefrom firstlaterally and then downwardly, .as shown,-forming to ether with thehammercasing a U-shaped ame. At the lower end greater of the pipe thehandle 3 is connected therewith, said handle being provided with a nipie 4 for the connection therewith of a 'flexile supply-pipe. Insidethe. handle is placed a suitable controlling-valve of which theoperating-.lever 5 extends out of the handle to a position suitable tobe engaged by the thumb of the operator.

On the ipe 2 opposite the handle 3 are the lugs 6, etween which the endof the'cutter-blade 7 is pivotally held by a pin 8. ()nthe back of theblade adjacent the outer end thereof is riveted the block 9, carryingthe stein 10, which extends into the end of the hammer-casing, as shown,to receive the impact of the reciprocatory plunger therein.

.Said stem is made to fit somewhatloosely in the casing and is reventedfrom being entirely disengaged tli ing'through the same and the slots 12in the casing. Said slots are made of a width slightly than the diameterof the pin in order to ermit the same to move in anarcuate path aboutthe center of the pin 8 when the to the position shown in dotted linesin Fig. 1. In t 1e operation of the cleaver the workman with one handgrasps the handle 3 andwith the otherthe handle 140n the verticalportion of the pipe 2.

nipple 4 on the andle 3 being'controlled by the valve-lever 5, theoperation of the hamm'er may be regulated as desired and the. cut

ting-blade be driven thereby through any bones or tissue with which itmay be placed in contact; the workman having only to guide the blade inorder to rapidly and effectively make the desired cut.

In Fig. 3 is shown the manner of applying struction described in thepatent to Boyer,

,No. 549,102, dated November 5, 1895. In

thesaid Fig; 3 various parts of the hammer mechanism not alread.designated by reference-numbers are mar ed with the same relerencecharacters employed in the said patent to Boyer. The construction andopera tionof these various parts are the same as in said atent, exceptthat the head-block C in stea of being formed integral with the-ham dlecontaining the controlling-valve is carried at the end of thesupply-pipe 2, being connected with the hammer casing or cylinder by thecoupling-sleeve D in the manner shown. The supplypipe 2 may beconsiderefrom by a pin 1 1 pass The flow of air from 1 v the flexiblesupply-pipe connected with the to my invention the pneumatic-hammerconcutter-blade is driven-down by the hammer otally connected withsaid'su ply-pipe, and

means carried by the cutterlade adjacent the unpivoted endthereofentering the hammercasing and being loosely connected therewith.

2. In a butchers cleaver the combination with the casing of afluid-pressure-driven hammer, of a supply-pipe connected with saidcasing and forming therewith a U- shaped frame, a cutter-blade pivotallyconnected with said frame, and a stem carried by the cutter-bladeadjacent the unpivoted end thereof, said stern being loosely connectedwith the hammer-casing.

3. The combination with the casing of a fiuid-pressure-driven hammer ofa member connected with the casing and forming together therewith aU-shaped frame, and a cutter-blade having one end pivotally connectedwith said frame and the other end loosely connected with thehammer-casin 4. In an instrument of the class describe the combinationwith the casing of a fluid- Eressure-driven hammer of a cutter-bladeaving one end thereof loosely connected with said casing, means havin aivotal connection with the o posite en 0 the cutterblade, and a mem errigidly connecting said pivoting means with the hammer-casing.

In testimony whereof I have hereunto subscribed my name in the presenceof two wit nesses.

JOHN H. SHERRY. Witnesses:

D. 0. BARNELL, Mrs. M. SHERRY.

